Germany.—Under greenhouse conditions the depth to which P. surinamensis penetrated the soil was determined; 21 dug down to a depth of 8 to 10 cm., 3 dug down 10 to 12 cm., but only one dug 13 cm. below the surface. Often the tubes in the soil ended in a chamber which the cockroach might not leave for several days; nymphs molted in such chambers and females bore their young there (Roeser, 1940).

Rhytidometopum dissimile

Trinidad.—Male on low herbage in orchard at night; under sacking; on Hibiscus at night (Princis and Kevan, 1955).

Riatia orientis

Trinidad.—Numerous specimens of both sexes at night on roadside Hibiscus rosa-sinensis or low herbage in orchard (Princis and Kevan, 1955).

Simblerastes jamaicanus

Jamaica.—Numerous in fragmentary debris of an abandoned termite nest on ground in the dry Liguanea Plain; a specimen was also taken under a stone in a field of short grass (Rehn and Hebard, 1927).

Styphon bakeri

Costa Rica.—Among humus and rubble in crevices and large cavities in rocks of the Tertiary limestone rim and the metamorphosed and igneous rocks of the interior of the islands (Baker in Rehn, 1930).